Rollable display

Patent metadata

Field	Value
Publication number	US-10146260-B2
Application number	US-201614991743-A
Country	US
Kind code	B2
Filing date	Jan 8, 2016
Priority date	Jan 12, 2015
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

A rollable display is disclosed. In one aspect, the rollable display includes a flexible display panel, a protective film configured to be placed on the flexible display panel, and a first jig connected to a first end of the flexible display panel and a first end of the protective film. The flexible display panel and the protective film are configured to be rolled around the first jig. The rollable display also includes a second jig connected to a second end of the protective film. The protective film is configured to be rolled around the second jig. The rollable display further includes a first housing for the first jig. The first housing is configured to accommodate the flexible display panel and the protective film.

First claim

What is claimed is:

1. A rollable display, comprising:
a flexible display panel;
a protective film configured to be placed on the flexible display panel;
a first jig connected to a first end of the flexible display panel and a first end of the protective film, wherein the flexible display panel and the protective film are configured to be rolled around the first jig;
a second jig connected to a second end of the protective film, wherein the protective film is configured to be rolled around the second jig;
a first housing for the first jig, wherein the first housing is configured to accommodate the flexible display panel and the protective film; and
a first spring directly contacting the first end of the flexible display panel and the first jig,
wherein the first spring is disposed between the first jig and the flexible display panel.

2. The rollable display of claim 1 , further comprising a second spring connecting the second end of the protective film to the second jig.

3. The rollable display of claim 2 , wherein each of the first and second springs comprises one or more of the following: a leaf spring, a spiral spring, and a coil spring.

4. The rollable display of claim 1 , wherein the first housing has a groove configured to accommodate the second jig and the protective film.

5. The rollable display of claim 1 , wherein the protective film is formed of one or more of the following materials: polycarbonate (PC), polyethyleneterephthalate (PET), polypropylene terephthalate (PPT), polyethylene naphthalate (PEN), cyclic olefin polymer (COP), cyclic olefin copolymer (COC), poly(methyl methacrylate) (PMMA), polyimide (PI), polyacrylate (PAR), polyethersulphone (PES), polyetherimide (PEI), a silicon resin, a fluorocarbon resin, and a modified epoxy resin.

6. The rollable display of claim 1 , further comprising a handle connected to a second end of the flexible display panel.

7. The rollable display of claim 1 , wherein an end portion of the first jig is rotatably fixed to the first housing.

8. A rollable display, comprising:
a flexible display panel;
a protective film configured to be placed on the flexible display panel;
a first jig connected to a first end of the flexible display panel and a first end of the protective film, wherein the flexible display panel and the protective film are configured to be rolled around the first jig;
a first spring directly contacting the first end of the flexible display panel and the first jig;
a second jig connected to a second end of the protective film, wherein the protective film is configured to be rolled around the second jig;
a second spring connecting the protective film to the second jig; and
a first housing for the first jig, wherein the first housing is configured to accommodate the flexible display panel and the protective film,
wherein the first spring has a resilience that is greater than that of the second spring,
wherein the first spring is disposed between the first jig and the flexible display panel.

9. A rollable display, comprising:
a flexible display panel;
a protective film configured to be placed on the flexible display panel;
a first jig connected to a first end of the flexible display panel and a first end of the protective film, wherein the flexible display panel and the protective film are configured to be rolled around the first jig;
a second jig connected to a second end of the protective film, wherein the protective film is configured to be rolled around the second jig;
a first spring directly contacting the first end of the flexible display panel and the first jig;
a first housing for the first jig, wherein the first housing is configured to accommodate the flexible display panel and the protective film; and
a second housing configured to accommodate the second jig and the protective film,
wherein the first spring is disposed between the first jig and the flexible display panel.

10. The rollable display of claim 9 , wherein the second housing is arranged within the first housing.

11. The rollable display of claim 9 , wherein the second housing is arranged on an outside surface of the first housing.

12. The rollable display of claim 11 , wherein the first housing has a first opening through which the flexible display panel is configured to be drawn in or out.

13. The rollable display of claim 12 , wherein the second housing has a second opening through which the protective film is configured to be drawn in or out.

14. The rollable display of claim 13 , wherein the second opening is arranged adjacent to the first opening.

15. The rollable display of claim 13 , wherein the second opening is connected to an interior of the first housing.

16. The rollable display of claim 9 , wherein an end portion of the second jig is rotatably fixed to the second housing.

17. The rollable display of claim 9 , wherein the first and second housing are configured to accommodate the entire protective film and prevent the protective film from being visible.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Junghun
• Kim Younjoon
• Lee Sangjo
• Lee Jusuck
• Jang Mi
• Choi Kyungmin

Classifications

• H05K5/0017

  with operator interface units · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• H05K1/028

  Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence) · CPC title

• H05K2201/051

  Rolled · CPC title

• G09F9/301 Primary

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title